I LOVE NCL's 'freestyle' cruising... which is why I love NCL... dinner takes MUCH less time, and happens when you're hungry... not when the schedule says. In terms of servers, I'd rather that they be as unobtrusive as possible... just politely take my order, get it right, and let me be... granted
DCL CM's are trained to have more interaction, but I can take it or leave it. Automatic tipping... DCL has it now... is it new or has it always been an option? We added ours in when we booked... more Disney Rewards before the cruise that way, and one less headache... having cruised NCL many times, we are used to the 'pre-paid' system anyway.